R4: TURN hex motif to wrong side and start this row with a sc, ch2, (sc, ch3) 5x, ch2, sc in last stitch, TURN

R5: Ch4, 3dc in ch2 space, (3dc in next ch3 space, 3dc, ch2, 3dc in next ch 3 space) 2x, 3dc in next ch3 space, 3 dc in last ch2 space, dc in last dc.

Hopefully I typed this out right, but if in doubt you should look at the pictures.
Since I did not take a pic of the last row on the 2nd attempt, I do not have a model to go by. It fit so well I did not want to take if off the blanket ;)

So there might be an error on the last row - let me know :)

Which ever way you choose to make your half hexies fit is probably ok as long as they look good on your blanket!